Picnic grill



FIG. 1 is a perspective view of a picnic grill showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view of thereof; and,

FIG. 8 is a sectional view taken along lines 8—8 in FIG. 4.

The broken lines depict environmental subject matter only and form no part of the claimed design. 

The ornamental design for a picnic grill, as shown and described. 